Diode tester using PIC 16F84
Posted on Jan 31, 2013
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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A monostable relay has two states: operative when a large enough current flows through its coil...
This circuit is from the data sheet for Linear Technology`s LT1720 (a 4. 5ns comparator). It`s...
The design of the charger is similar to that of many commercially available chargers. The charger...
LED lighting, and the potential that it brings, is moving to the forefront of residential and...
A Super-Duper Powerful Vacuum Tube QRP amplifier for my 800mW QRPP homebrew telegraph vacuum tube...
Interior lights come on when I enter the car, and most of the time do not go out while driving....
This circuit is suitable in every situation where over-current protection is required. Here we...
A motorcycle or boat battery that is not needed over the winter is usually charged before being...
The schematic for controlling the motors is split up into three main parts, with each part having...
The circuit described here is of an economical smooth variable power supply which offers 0V to...
Production of high-quality wireless microphone is the desire of many readers, but amateur
As shown for the basic application circuit thermistor. Figure (a) of the basic temperature...
Automatic sprinkler control circuit It shows automatic sprinkler control circuit. The circuit...
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